Home / 212,735,074.60-319,354,554.30-120,692,117.80

Finding the Fourth Proportional to 212,735,074.60, 319,354,554.30 and 120,692,117.80

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Solution

The fourth proportional to 212,735,074.60, 319,354,554.30 and 120,692,117.80 is: 181,181,112.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,735,074.60 : 319,354,554.30 = 120,692,117.80 : x
  2. Step 2: Convert to fraction form
    212,735,074.60/319,354,554.30 = 120,692,117.80/x
  3. Step 3: Cross multiply
    212,735,074.60x = 319,354,554.30 × 120,692,117.80
  4. Step 4: Simplify right side
    212,735,074.60x = 38,543,577,487,542,096
  5. Step 5: Solve for x
    x = 38,543,577,487,542,096/212,735,074.60
  6. Step 6: Final answer
    x = 181,181,112.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.